CN110206271B - Joint-cutting-free construction method for concrete super-flat terrace - Google Patents
Joint-cutting-free construction method for concrete super-flat terrace Download PDFInfo
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- CN110206271B CN110206271B CN201910415600.7A CN201910415600A CN110206271B CN 110206271 B CN110206271 B CN 110206271B CN 201910415600 A CN201910415600 A CN 201910415600A CN 110206271 B CN110206271 B CN 110206271B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
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Abstract
The invention discloses a joint-cutting-free construction method for a concrete super-flat terrace, which comprises the following steps: firstly, determining the position of a cutting seam; secondly, mounting a support ring; thirdly, mounting an auxiliary support frame; fourthly, installing a partition board for networking; fifthly, correcting and leveling; sixthly, mounting a floor reinforcing steel bar layer; seventhly, pouring concrete; and eighthly, leveling the closing surface and removing the partition plate. According to the invention, joint cutting-free construction is carried out on the ultra-flat terrace, so that noise pollution and dust pollution of joint cutting construction of the traditional concrete terrace are avoided, and the environment is protected; the partition boards are arranged in the concrete terrace in advance for networking, so that later joint cutting construction is avoided, and the generation of shrinkage stress cracks of the concrete terrace is reduced; a plurality of first baffles and a plurality of second baffles constitute baffle network deployment, make its in-process at concreting, through the baffle network deployment top that makes the installation and the concrete surface course behind the receipts face lie in the coplanar, effectively reduce the uncontrollable nature of concrete receipts face, improve the roughness of concrete face.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a joint-cutting-free construction method for a concrete super-flat terrace.
Background
With the rapid development of economy, the requirements of buildings such as large-scale workshops, electronic plants, logistics warehouses and the like are continuously increased, the requirements on the flatness and the construction quality of the ground are more and more strict according to functions, and the surface flatness of the cement concrete is 5mm/2m according to the regulations of the national specification of acceptance of construction quality of building ground engineering (GB50209-2002), so that the quality requirements of the use functions of the buildings can not be met. At present, the control of the concrete surface evenness in the industry mainly depends on the personal actual construction level of constructors, and the controllability is low; in addition, according to the performance of concrete and the national standard requirements, an induction seam needs to be cut on a terrace to prevent and reduce the generation of concrete cracks. Therefore, in order to avoid shrinkage stress cracks and improve the controllability of the surface evenness of the concrete, the joint-cutting-free construction method for the concrete super-flat terrace is provided, and joint cutting of the super-flat terrace is constructed.
Disclosure of Invention
The invention aims to solve the technical problem that the invention aims to overcome the defects in the prior art and provides a joint-cutting-free construction method for a concrete super-flat terrace, which has simple steps and reasonable design, and the joint-cutting-free construction is carried out on the super-flat terrace by utilizing a partition plate networking layer, a terrace steel bar layer and a supporting mechanism for supporting the partition plate networking layer and the terrace steel bar layer, so that the noise pollution and the dust pollution of the joint-cutting construction of the traditional concrete terrace are avoided, and the joint-cutting-free construction method is economical, practical and environment-friendly; the partition boards are arranged in the concrete terrace in advance for networking, so that later joint cutting construction is avoided, and the generation of shrinkage stress cracks of the concrete terrace is reduced; a plurality of first baffles and a plurality of second baffles constitute baffle network deployment, make its in-process at concreting, through the baffle network deployment top that makes the installation and the concrete surface course behind the receipts face lie in the coplanar, effectively reduce the uncontrollable nature of concrete receipts face, improve the roughness of concrete face.
In order to solve the technical problems, the invention adopts the technical scheme that: a kerf-free construction method for a concrete super-flat terrace is characterized in that a kerf-free super-flat terrace structure is utilized to construct the concrete super-flat terrace, the kerf-free super-flat terrace structure comprises the concrete terrace and a terrace foundation poured in the concrete terrace, the terrace foundation comprises a partition plate networking layer, a terrace reinforcing steel layer and a supporting mechanism for supporting the partition plate networking layer and the terrace reinforcing steel layer, the supporting mechanism comprises a plurality of supporting rings which are arranged in an array manner, and an auxiliary supporting frame is arranged between two adjacent supporting rings which are arranged in the same row and between two adjacent supporting rings which are arranged in the same column in the supporting mechanism;
the support ring comprises four main support frames which are matched with each other, a rectangular area is enclosed by the four main support frames, a transition support frame is arranged between the two main support frames on the same side of the rectangular area, each main support frame comprises an L-shaped clamping piece and a main adjusting base arranged below the L-shaped clamping piece, the opening of each L-shaped clamping piece faces the rectangular area, an L-shaped clamping groove is formed in each L-shaped clamping piece, and a main positioning hook used for hanging a steel bar is arranged at the bottom of each L-shaped clamping piece;
the transition support frame comprises a T-shaped clamping piece and a transition adjusting base arranged below the T-shaped clamping piece, the vertical section of the T-shaped clamping piece is arranged on one side far away from the corresponding rectangular area, a T-shaped clamping groove is formed in the T-shaped clamping piece, the horizontal section of the T-shaped clamping groove is matched with the two L-shaped clamping grooves on the corresponding side of the same rectangular area, and a transition positioning hook used for hanging and arranging reinforcing steel bars is arranged at the bottom of the T-shaped clamping piece;
the auxiliary support frame comprises a linear clamping piece and an auxiliary adjusting base supported below the linear clamping piece, a linear clamping groove is formed in the linear clamping piece, the linear clamping groove is matched with the vertical sections of the two adjacent T-shaped clamping grooves which are oppositely arranged, and an auxiliary positioning hook used for hanging and arranging a reinforcing steel bar is arranged at the bottom of the linear clamping piece;
the main adjusting base, the transition adjusting base and the auxiliary adjusting base are the same in structural size, the main adjusting base comprises a fixed bottom plate, an adjusting sleeve fixedly installed on the fixed bottom plate, a supporting rod inserted in the adjusting sleeve and an adjusting bolt arranged on the adjusting sleeve and abutted against the supporting rod, and an L-shaped clamping piece, a T-shaped clamping piece or a straight-line-shaped clamping piece is installed at the top end of the supporting rod;
the method is characterized by comprising the following steps:
step one, determining the position of a cutting seam: cleaning the surface of a base layer raft of a terrace, and snapping lines on the cleaned surface of the base layer raft according to a joint cutting position designed by a drawing by using an ink fountain, wherein the snapping lines are distributed around an upright column;
step two, mounting a support ring, and the process is as follows:
step 201, installing a main supporting frame: according to the snapping lines of the ink fountain around the upright posts in the step one, the main support frames are placed at four corners of the snapping lines, so that the centers of the fixing bottom plates on the main support frames coincide with the intersection points of the snapping lines at the corners, the positions of the fixing bottom plates on the main support frames are fixed by using expansion screws, and four corresponding main support frames around one upright post form a support ring;
step 202, installing a transition support frame: mounting the transition support frame at the middle position of each side of the support ring fixed in the step 201, enabling the center of a fixing bottom plate on the transition support frame to coincide with the middle point of each side of the support ring, and fixing the position of the fixing bottom plate on the transition support frame by using an expansion screw;
the plurality of support rings are arranged in an array;
step three, mounting an auxiliary support frame: the auxiliary support frame is arranged in the center of the area between two adjacent support rings in the same row or the same column, so that the straight clamping grooves on the auxiliary support frame are matched with the vertical sections of two adjacent T-shaped clamping grooves which are arranged oppositely, and the position of a fixed bottom plate on the auxiliary support frame is fixed by using expansion screws;
step four, installing a partition board for networking: clamping a first partition plate wrapping the PE film in the horizontal section of the T-shaped clamping groove matched with the horizontal section of the L-shaped clamping groove on the corresponding side of the same rectangular area, and clamping a second partition plate wrapping the PE film in the straight-line-shaped clamping groove matched with the horizontal section of the T-shaped clamping groove and the vertical sections of the two adjacent T-shaped clamping grooves arranged oppositely;
step five, correcting and leveling: measuring the heights of two adjacent support frames by using a level gauge, and adjusting the heights of the support rods on the two adjacent support frames by screwing an adjusting bolt so that the heights of two adjacent clamping pieces are consistent, the distance between the top of a partition board network and the top of each clamping piece is not more than 2mm, and the top of the partition board network is higher than the top of each clamping piece;
step six, mounting a floor reinforcing steel layer:
step 601, building a local reinforcing steel layer: a local reinforcing steel bar layer is erected between the bottoms of two parallel and adjacent second partition plates, the local reinforcing steel bar layer comprises a plurality of mutually parallel reinforcing steel bars, the plurality of local reinforcing steel bar layers form the floor reinforcing steel bar layer, the plurality of mutually parallel reinforcing steel bars in one local reinforcing steel bar layer are erected on two corresponding positioning hooks at the bottoms of the two parallel and adjacent second partition plates, wherein two ends of the reinforcing steel bars erected in the middle of the second partition plates are respectively erected on auxiliary positioning hooks at the bottoms of the oppositely arranged in-line clamping pieces, and two ends of the reinforcing steel bars erected at two ends of the second partition plates are respectively erected on transition positioning hooks at the bottoms of the oppositely arranged T-shaped clamping pieces;
step 602, installing a steel bar saddle: installing steel bar saddles at the bottoms of the steel bars along the length direction of the steel bars erected in the step 601, wherein the distance between every two adjacent steel bar saddles is 1.5 m;
step 603, laying a steel bar mesh: paving a reinforcing mesh layer on the steel bars erected in the step 601, wherein the reinforcing mesh layer is composed of a plurality of rolls of sequentially and continuously paved reinforcing mesh sheets, and the edges of two adjacent reinforcing mesh sheets are overlapped;
step seven, pouring concrete: controlling the mixing proportion of the concrete, and continuously pouring the prepared concrete in the area where the reinforcing mesh is laid and the rectangular area in the step 603;
step eight, leveling and collecting the surface and removing the partition plate: collecting the surface of the poured concrete by using a scraping bar, so that the collected concrete surface layer and the top of the partition board networking are positioned on the same plane, and the concrete surface layer is ensured to be flat; after the concrete is initially set, performing secondary surface compacting by using a polishing machine, and performing fine flattening and surface compacting on the surface of the concrete by manual cooperation; and after the concrete is solidified, pulling out the partition plate.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: the horizontal section of the T-shaped clamping groove and two matched L-shaped clamping grooves on the corresponding edges of the same rectangular area are provided with first partition plates, the straight-line-shaped clamping groove and two opposite T-shaped clamping grooves are provided with second partition plates, the vertical sections of the first partition plates and the second partition plates are provided with PE films in a sleeved mode, and the first partition plates and the second partition plates form partition plate networking.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: the top of first baffle and second baffle all is provided with two pull rings, and two pull rings all are located the both ends at first baffle and second baffle top.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: the bottom of the L-shaped clamping piece is provided with two main positioning hooks, the projection of one main positioning hook of the two main positioning hooks on the ground is parallel to one horizontal section of the L-shaped clamping piece, and the projection of the other main positioning hook of the two main positioning hooks on the ground is parallel to the other horizontal section of the L-shaped clamping piece.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: the transition positioning hook is arranged at the bottom of the vertical section of the T-shaped clamping piece, and the projection of the transition positioning hook on the ground is superposed with the projection of the vertical section of the T-shaped clamping piece on the ground.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: the projection of the auxiliary positioning hook on the ground is superposed with the projection of the linear clamping piece on the ground.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: the support ring sets up outside the stand, and the quantity of stand is a plurality of, the quantity of stand with the quantity of support ring is equal and one-to-one.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: the adjusting sleeve is provided with a connecting pipe, the connecting pipe is communicated with the adjusting sleeve, an internal thread matched with the adjusting bolt is arranged in the connecting pipe, and the adjusting bolt extends into the connecting pipe and abuts against the supporting rod.
The joint-cutting-free construction method for the concrete super-flat terrace is characterized by comprising the following steps of: and step eight, after the concrete is solidified, pulling out the first partition plate along the length direction of the first partition plate and pulling out the second partition plate along the length direction of the second partition plate by using pull rings on the first partition plate and the second partition plate.
Compared with the prior art, the invention has the following advantages:
1. the method has simple steps and convenient operation, and utilizes the partition board assembly net and the floor reinforcing steel layer as well as the supporting mechanism for supporting the partition board assembly net and the floor reinforcing steel layer to carry out joint-cutting-free construction on the ultra-flat floor, thereby avoiding the noise pollution and the dust pollution of the joint-cutting construction of the traditional concrete floor, being economical and practical and being green and environment-friendly.
2. According to the invention, the elevation of the partition board network is adjusted by using the adjusting base in advance, the partition board network is installed in the concrete terrace in advance, and the concrete is poured on the built super-flat terrace construction structure, so that the later-stage joint cutting construction is avoided, and the generation of shrinkage stress cracks of the concrete terrace is reduced.
3. According to the invention, the first partition plates wrapping the PE film are clamped in the horizontal sections of the T-shaped clamping grooves matched with the horizontal sections of the two L-shaped clamping grooves on the corresponding sides of the same rectangular area, the second partition plates wrapping the PE film are clamped in the linear clamping grooves matched with the horizontal sections of the T-shaped clamping grooves and the vertical sections of the two adjacent T-shaped clamping grooves arranged oppositely, and the plurality of first partition plates and the plurality of second partition plates form the partition plate networking, so that in the process of pouring concrete, the top of the installed partition plate networking and the concrete surface layer after the folding surface are positioned on the same plane, the uncontrollable property of the concrete folding surface is effectively reduced, and the flatness of the concrete surface is improved.
In conclusion, the invention carries out joint-cutting-free construction on the ultra-flat terrace by utilizing the partition board networking and the terrace steel bar layer and the supporting mechanism for supporting the partition board networking and the terrace steel bar layer, avoids noise pollution and dust pollution of the joint-cutting construction of the traditional concrete terrace, and is economical, practical and environment-friendly; the partition boards are arranged in the concrete terrace in advance for networking, so that later joint cutting construction is avoided, and the generation of shrinkage stress cracks of the concrete terrace is reduced; a plurality of first baffles and a plurality of second baffles constitute baffle network deployment, make its in-process at concreting, through the baffle network deployment top that makes the installation and the concrete surface course behind the receipts face lie in the coplanar, effectively reduce the uncontrollable nature of concrete receipts face, improve the roughness of concrete face.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic view of the construction state of laying the steel mesh sheet of the present invention.
Fig. 2 is a schematic view of the construction state of the partition board installation networking system.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a schematic structural view of the main support frame of the present invention.
Fig. 5 is a schematic structural view of the transition support frame of the present invention.
Fig. 6 is a schematic structural view of the auxiliary supporting frame of the present invention.
FIG. 7 is a block flow diagram of a method of the present invention.
Description of reference numerals:
1-1 — a first separator; 1-2-a second separator; 2, a pull ring;
3, supporting a rod; 4-a linear fastener; 5, auxiliary positioning hooks;
6-T-shaped clamping piece; 7-a transition positioning hook; 8-an L-shaped clip;
9-main positioning hook; 10, fixing a bottom plate; 10-1-bolt hole;
11-adjusting the sleeve; 12-adjusting the bolt; 13-connecting pipe;
14-upright column; 17-reinforcing steel bars; 18-a steel bar saddle;
19-reinforcing mesh.
Detailed Description
As shown in fig. 1 to 7, a kerf-free construction method for a concrete super-flat terrace is provided, in which a kerf-free super-flat terrace structure is used for constructing the concrete super-flat terrace, the kerf-free super-flat terrace structure comprises a concrete terrace and a terrace foundation poured in the concrete terrace, the terrace foundation comprises a partition plate networking and a terrace reinforcing steel layer, and a supporting mechanism for supporting the partition plate networking and the terrace reinforcing steel layer, the supporting mechanism comprises a plurality of supporting rings arranged in an array manner, and an auxiliary supporting frame is respectively arranged between two adjacent supporting rings arranged in the same row and between two adjacent supporting rings arranged in the same column in the supporting mechanism;
the support ring comprises four main support frames which are matched with each other, a rectangular area is enclosed by the four main support frames, a transition support frame is arranged between the two main support frames on the same side of the rectangular area, each main support frame comprises an L-shaped clamping piece 8 and a main adjusting base arranged below the L-shaped clamping piece 8, the opening of each L-shaped clamping piece 8 faces the rectangular area, an L-shaped clamping groove is formed in each L-shaped clamping piece 8, and a main positioning hook 9 used for hanging a steel bar 17 is arranged at the bottom of each L-shaped clamping piece 8;
the transition support frame comprises a T-shaped clamping piece 6 and a transition adjusting base arranged below the T-shaped clamping piece 6, wherein the vertical section of the T-shaped clamping piece 6 is arranged on one side far away from the corresponding rectangular area, a T-shaped clamping groove is formed in the T-shaped clamping piece 6, the horizontal section of the T-shaped clamping groove is matched with the two L-shaped clamping grooves in the corresponding side of the same rectangular area, and a transition positioning hook 7 used for hanging a reinforcing steel bar 17 is arranged at the bottom of the T-shaped clamping piece 6;
the auxiliary support frame comprises a linear clamping piece 4 and an auxiliary adjusting base supported below the linear clamping piece 4, a linear clamping groove is formed in the linear clamping piece 4 and matched with vertical sections of two adjacent T-shaped clamping grooves which are oppositely arranged, and an auxiliary positioning hook 5 used for hanging and arranging a reinforcing steel bar 17 is arranged at the bottom of the linear clamping piece 4;
the main adjusting base, the transition adjusting base and the auxiliary adjusting base are the same in structural size, the main adjusting base comprises a fixed bottom plate 10, an adjusting sleeve 11 fixedly installed on the fixed bottom plate 10, a support rod 3 inserted in the adjusting sleeve 11 and an adjusting bolt 12 arranged on the adjusting sleeve 11 and abutted against the support rod 3, and an L-shaped clamping piece 8, a T-shaped clamping piece 6 or a straight-line-shaped clamping piece 4 is installed at the top end of the support rod 3;
the method comprises the following steps:
step one, determining the position of a cutting seam: cleaning the surface of a base layer raft of a terrace, and snapping lines on the cleaned surface of the base layer raft according to a cutting seam position designed by a drawing by using an ink fountain, wherein the snapping lines are distributed around the upright posts 14;
step two, mounting a support ring, and the process is as follows:
step 201, installing a main supporting frame: according to the snapping lines of the ink fountain around the upright posts 14 in the step one, the main support frames are placed at four corners of the snapping lines, so that the centers of the fixing bottom plates 10 on the main support frames are superposed with the intersection points of the snapping lines at the corners, the positions of the fixing bottom plates 10 on the main support frames are fixed by using expansion screws, and four corresponding main support frames around one upright post 14 form a support ring;
step 202, installing a transition support frame: mounting the transition support frame at the middle position of each side of the support ring fixed in the step 201, so that the center of the fixing bottom plate 10 on the transition support frame coincides with the middle point of each side of the support ring, and fixing the position of the fixing bottom plate 10 on the transition support frame by using an expansion screw;
the plurality of support rings are arranged in an array;
step three, mounting an auxiliary support frame: the auxiliary support frame is arranged in the center of the area between two adjacent support rings in the same row or the same column, so that a straight clamping groove on the auxiliary support frame is matched with the vertical sections of two adjacent T-shaped clamping grooves which are arranged oppositely, and the position of a fixing bottom plate 10 on the auxiliary support frame is fixed by using an expansion screw;
step four, installing a partition board for networking: clamping a first partition plate 1-1 wrapping the PE film in the horizontal section of the T-shaped clamping groove matched with the horizontal section of the L-shaped clamping groove on the corresponding side of the same rectangular area, and clamping a second partition plate 1-2 wrapping the PE film in the straight-line-shaped clamping groove matched with the horizontal section of the T-shaped clamping groove and the vertical sections of the two adjacent T-shaped clamping grooves arranged oppositely;
step five, correcting and leveling: measuring the heights of two adjacent support frames by using a level gauge, adjusting the heights of the support rods 3 on the two adjacent support frames by screwing an adjusting bolt 12, so that the heights of two adjacent clamping pieces are consistent, the distance between the top of a partition board network and the top of the clamping piece is not more than 2mm, and the top of the partition board network is higher than the top of the clamping piece;
step six, mounting a floor reinforcing steel layer:
step 601, building a local reinforcing steel layer: a local reinforcing bar layer is erected between the bottoms of two parallel and adjacent second partition boards 1-2, the local reinforcing bar layer comprises a plurality of mutually parallel reinforcing bars 17, the plurality of local reinforcing bar layers form the floor reinforcing bar layer, the plurality of mutually parallel reinforcing bars 17 in one local reinforcing bar layer are erected on two corresponding positioning hooks at the bottoms of two parallel and adjacent second partition boards 1-2, wherein two ends of the reinforcing bar 17 erected in the middle of the second partition boards 1-2 are respectively erected on the auxiliary positioning hooks 5 at the bottoms of the oppositely arranged in-line clamping pieces 4, and two ends of the reinforcing bar 17 erected at two ends of the second partition boards 1-2 are respectively erected on the transition positioning hooks 7 at the bottoms of the oppositely arranged in-line clamping pieces 6;
step 602, installing a steel bar saddle: installing reinforcing steel bar saddles 18 at the bottoms of the reinforcing steel bars 17 along the length direction of the reinforcing steel bars 17 erected in the step 601, wherein the distance between every two adjacent reinforcing steel bar saddles 18 is 1.5 m;
step 603, laying a steel bar mesh: paving a reinforcing mesh layer on the reinforcing steel bars 17 erected in the step 601, wherein the reinforcing mesh layer is composed of a plurality of rolls of reinforcing mesh sheets 19 which are sequentially and continuously paved, and the edges of two adjacent reinforcing mesh sheets 19 are overlapped;
step seven, pouring concrete: controlling the mixing proportion of the concrete, and continuously pouring the prepared concrete in the area where the reinforcing mesh 19 is laid and the rectangular area in the step 603;
step eight, leveling and collecting the surface and removing the partition plate: collecting the surface of the poured concrete by using a scraping bar, so that the collected concrete surface layer and the top of the partition board networking are positioned on the same plane, and the concrete surface layer is ensured to be flat; after the concrete is initially set, performing secondary surface compacting by using a polishing machine, and performing fine flattening and surface compacting on the surface of the concrete by manual cooperation; and after the concrete is solidified, pulling out the partition plate.
Cleaning the surface of a base raft by using a broom and a high-pressure water gun, so that the surface of the base raft meets the requirements of no laitance, no floating ash and the like;
as shown in fig. 1, 2 and 3, the installation of two first partition boards 1-1 at the four corners is facilitated by installing the main supporting frame at the four corners of the upright 14; the transition support frame is arranged in the middle of each side of the support rings, so that the first partition plates 1-1 surrounding the upright posts 14 are supported, and the second partition plates 1-2 in the area between two adjacent support rings in the same row or the same column can be conveniently arranged.
The continuous pouring is carried out in the concrete pouring process so as to ensure that no cold joint occurs in the pouring process and ensure the construction quality.
In this embodiment, the horizontal section of the T-shaped clamping groove and the two L-shaped clamping grooves which are matched with each other on the corresponding sides of the same rectangular area are provided with a first partition plate 1-1, the straight-line-shaped clamping groove and the two vertical sections of the T-shaped clamping grooves which are oppositely arranged and matched with each other are provided with a second partition plate 1-2, the first partition plate 1-1 and the second partition plate 1-2 are respectively sleeved with a PE film, and the partition plate networking is formed by the first partition plates 1-1 and the second partition plates 1-2.
In practical use, the first partition plate 1-1 and the second partition plate 1-2 are both rectangular steel plates, the size of the first partition plate 1-1 and the size of the second partition plate 1-2 are the same as the size of a cutting seam designed by a drawing, the size of the cutting seam is ensured, and a PE film is sleeved outside the first partition plate 1-1 and the second partition plate 1-2, so that the partition plates can be conveniently dismounted in the later period. As shown in fig. 1, four first partition boards 1-1 form a rectangular support ring around the upright column 14.
In this embodiment, two pull rings 2 are disposed on the top of each of the first partition board 1-1 and the second partition board 1-2, and the two pull rings 2 are disposed on two ends of the top of each of the first partition board 1-1 and the second partition board 1-2.
As shown in fig. 1, the pull ring 2 is provided at the top of the first partition board 1-1 and the second partition board 1-2 to ensure that the first partition board 1-1 and the second partition board 1-2 can be smoothly removed, when the first partition board 1-1 is pulled out, a constructor needs to exert a force along the length direction of the first partition board 1-1, and when the second partition board 1-2 is pulled out, the constructor needs to exert a force along the length direction of the second partition board 1-2, so that a brute force cannot be used, and a cut seam cannot be damaged.
In this embodiment, two main positioning hooks 9 are disposed at the bottom of the L-shaped clamping member 8, a projection of one main positioning hook 9 of the two main positioning hooks 9 on the ground is parallel to one horizontal section of the L-shaped clamping member 8, and a projection of the other main positioning hook 9 of the two main positioning hooks 9 on the ground is parallel to the other horizontal section of the L-shaped clamping member 8.
As shown in fig. 4, the bending direction of the main positioning hook 9 is away from the opening of the L-shaped clamping piece 8, and the L-shaped clamping piece 8 has the functions of: on one hand, an L-shaped clamping groove is conveniently formed in the L-shaped clamping piece 8, and the first partition plate 1-1 is installed in the transverse direction and the longitudinal direction; on the other hand, the device can save materials and avoid waste. In practical use, the L-shaped clamping piece 8 is supported at the corner around the upright post 14, and clamps the first partition boards 1-1 at two sides of the corner around the upright post 14. Constructor according to actual construction conditions and actual construction effect, when laying reinforcing bar 17, reinforcing bar 17 can set up and carry out the transition on the main positioning hook 9 of the L shape clamping part 8 bottom that the corner symmetry set up.
In this embodiment, the transitional positioning hook 7 is disposed at the bottom of the vertical section of the T-shaped clamping member 6, and a projection of the transitional positioning hook 7 on the ground coincides with a projection of the vertical section of the T-shaped clamping member 6 on the ground.
As shown in fig. 5, the T-shaped clamping member 6 functions to: on one hand, a T-shaped clamping groove is conveniently formed in the T-shaped clamping piece 6, and the installation of the first transverse partition plate 1-1 and the second longitudinal partition plate 1-2 is realized; on the other hand, the device can save materials and avoid waste. In practical use, the T-shaped clamping piece 6 is supported at the middle position of each edge of the support ring, so that the installation of the first partition boards 1-1 around the upright posts 14 can be ensured, and the second partition boards 1-2 between two adjacent upright posts 14 can be supported. According to the actual construction condition and the actual construction effect, construction personnel only need to arrange the transitional positioning hook 7 on the vertical section of the T-shaped clamping piece 6 to meet the laying requirement of the reinforcing steel bar 17.
In this embodiment, the projection of the auxiliary positioning hook 5 on the ground coincides with the projection of the linear clamping piece 4 on the ground.
As shown in fig. 6, the auxiliary positioning hook 5 is fixed at one side of the bottom of the in-line clip 4, and the auxiliary positioning hook 5 is used for supporting two ends of the reinforcing steel bar 17 on the auxiliary positioning hook 5 in the process of erecting the reinforcing steel bar 17, so as to facilitate the erection of the reinforcing steel bar 17.
In this embodiment, the support rings are disposed outside the columns 14, the number of the columns 14 is multiple, and the number of the columns 14 is equal to and corresponds to the number of the support rings.
In this embodiment, a connecting pipe 13 is arranged on the adjusting sleeve 11, the connecting pipe 13 is communicated with the adjusting sleeve 11, an internal thread matched with the adjusting bolt 12 is arranged in the connecting pipe 13, and the adjusting bolt 12 extends into the connecting pipe 13 and abuts against the support rod 3.
During actual use, the adjusting bolt 12 is matched with the connecting pipe 13 to adjust the height of the supporting rod 3, so that the height of the clamping piece is adjusted.
In this embodiment, in step eight, after the concrete is solidified, the first partition board 1-1 is pulled out along the length direction of the first partition board 1-1 by using the pull ring 2 on the first partition board 1-1 and the second partition board 1-2, and the second partition board 1-2 is pulled out along the length direction of the second partition board 1-2.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. A kerf-free construction method for a concrete super-flat terrace is characterized in that a kerf-free super-flat terrace structure is utilized to construct the concrete super-flat terrace, the kerf-free super-flat terrace structure comprises the concrete terrace and a terrace foundation poured in the concrete terrace, the terrace foundation comprises a partition plate networking layer, a terrace reinforcing steel layer and a supporting mechanism for supporting the partition plate networking layer and the terrace reinforcing steel layer, the supporting mechanism comprises a plurality of supporting rings which are arranged in an array manner, and an auxiliary supporting frame is arranged between two adjacent supporting rings which are arranged in the same row and between two adjacent supporting rings which are arranged in the same column in the supporting mechanism;
the support ring comprises four main support frames which are matched with each other, a rectangular area is enclosed by the four main support frames, a transition support frame is arranged between the two main support frames on the same side of the rectangular area, each main support frame comprises an L-shaped clamping piece (8) and a main adjusting base arranged below the L-shaped clamping piece (8), the opening of each L-shaped clamping piece (8) faces the rectangular area, an L-shaped clamping groove is formed in each L-shaped clamping piece (8), and a main positioning hook (9) used for hanging a steel bar (17) is arranged at the bottom of each L-shaped clamping piece (8);
the transition support frame comprises a T-shaped clamping piece (6) and a transition adjusting base arranged below the T-shaped clamping piece (6), wherein the vertical section of the T-shaped clamping piece (6) is arranged on one side far away from the corresponding rectangular area, a T-shaped clamping groove is formed in the T-shaped clamping piece (6), the horizontal section of the T-shaped clamping groove is matched with the two L-shaped clamping grooves on the corresponding sides of the same rectangular area, and a transition positioning hook (7) used for hanging a reinforcing steel bar (17) is arranged at the bottom of the T-shaped clamping piece (6);
the auxiliary support frame comprises a linear clamping piece (4) and an auxiliary adjusting base supported below the linear clamping piece (4), a linear clamping groove is formed in the linear clamping piece (4), the linear clamping groove is matched with the vertical sections of two adjacent T-shaped clamping grooves which are arranged oppositely, and an auxiliary positioning hook (5) used for hanging and arranging a steel bar (17) is arranged at the bottom of the linear clamping piece (4);
the main adjusting base, the transition adjusting base and the auxiliary adjusting base are identical in structural size, the main adjusting base comprises a fixed bottom plate (10), an adjusting sleeve (11) fixedly installed on the fixed bottom plate (10), a supporting rod (3) inserted in the adjusting sleeve (11) and an adjusting bolt (12) arranged on the adjusting sleeve (11) and abutted against the supporting rod (3), and an L-shaped clamping piece (8), a T-shaped clamping piece (6) or a straight-line-shaped clamping piece (4) is installed at the top end of the supporting rod (3);
the method is characterized by comprising the following steps:
step one, determining the position of a cutting seam: cleaning the surface of a base layer raft of a terrace, and snapping lines on the cleaned surface of the base layer raft according to a cutting seam position designed by a drawing by using an ink fountain, wherein the snapping lines are distributed around an upright column (14);
step two, mounting a support ring, and the process is as follows:
step 201, installing a main supporting frame: according to the snapping lines of the ink fountain around the upright columns (14) in the step one, the main support frames are placed at four corners of the snapping lines, so that the centers of the fixing bottom plates (10) on the main support frames are superposed with the intersection points of the snapping lines at the corners, the positions of the fixing bottom plates (10) on the main support frames are fixed by using expansion screws, and four corresponding main support frames around one upright column (14) form a support ring;
step 202, installing a transition support frame: mounting the transition support frame at the middle position of each side of the support ring with the fixed position in step 201, enabling the center of a fixing bottom plate (10) on the transition support frame to coincide with the middle point of each side of the support ring, and fixing the position of the fixing bottom plate (10) on the transition support frame by using an expansion screw;
the plurality of support rings are arranged in an array;
step three, mounting an auxiliary support frame: the auxiliary support frame is arranged in the center of the area between two adjacent support rings in the same row or the same column, so that a straight clamping groove on the auxiliary support frame is matched with the vertical sections of two adjacent T-shaped clamping grooves which are arranged oppositely, and the position of a fixing bottom plate (10) on the auxiliary support frame is fixed by using an expansion screw;
step four, installing a partition board for networking: clamping a first partition plate (1-1) wrapping the PE film in the horizontal section of the T-shaped clamping groove matched with the horizontal section of the L-shaped clamping groove on the corresponding side of the same rectangular area, and clamping a second partition plate (1-2) wrapping the PE film in the linear clamping groove matched with the horizontal section of the T-shaped clamping groove and the vertical sections of the two adjacent T-shaped clamping grooves arranged oppositely;
step five, correcting and leveling: measuring the heights of the two adjacent support frames by using a level gauge, adjusting the heights of the support rods (3) on the two adjacent support frames by screwing an adjusting bolt (12), so that the heights of the two adjacent clamping pieces are consistent, the distance between the top of the partition board network and the top of the clamping piece is not more than 2mm, and the top of the partition board network is higher than the top of the clamping piece;
step six, mounting a floor reinforcing steel layer:
step 601, building a local reinforcing steel layer: a local reinforcing steel bar layer is erected between the bottoms of the two parallel and adjacent second partition boards (1-2), the local reinforcing steel bar layer comprises a plurality of reinforcing steel bars (17) which are parallel to each other, the plurality of local reinforcing steel bar layers form the floor reinforcing steel bar layer, the plurality of reinforcing steel bars (17) which are parallel to each other in one local reinforcing steel bar layer are erected on two positioning hooks which are parallel to each other and correspond to the bottoms of the two adjacent second partition plates (1-2), wherein two ends of a steel bar (17) erected in the middle of the second partition plate (1-2) are respectively erected on the auxiliary positioning hooks (5) at the bottoms of the oppositely arranged linear clamping pieces (4), and two ends of the steel bar (17) erected at two ends of the second partition plate (1-2) are respectively erected on the transitional positioning hooks (7) at the bottoms of the oppositely arranged T-shaped clamping pieces (6);
step 602, installing a steel bar saddle: installing steel bar saddles (18) at the bottoms of the steel bars (17) along the length direction of the steel bars (17) erected in the step 601, wherein the distance between every two adjacent steel bar saddles (18) is 1.5 m;
step 603, laying a steel bar mesh: paving a reinforcing mesh layer on the reinforcing steel bars (17) erected in the step 601, wherein the reinforcing mesh layer is composed of a plurality of rolls of reinforcing mesh sheets (19) which are sequentially and continuously paved, and the edges of two adjacent reinforcing mesh sheets (19) are overlapped;
step seven, pouring concrete: controlling the mixing proportion of concrete, and continuously pouring the prepared concrete in the area where the steel bar meshes (19) are laid in the step 603 and the rectangular area;
step eight, leveling and collecting the surface and removing the partition plate: collecting the surface of the poured concrete by using a scraping bar, so that the collected concrete surface layer and the top of the partition board networking are positioned on the same plane, and the concrete surface layer is ensured to be flat; after the concrete is initially set, performing secondary surface compacting by using a polishing machine, and performing fine flattening and surface compacting on the surface of the concrete by manual cooperation; and after the concrete is solidified, pulling out the partition plate.
2. The slitting-free construction method for the concrete ultra-flat floor according to claim 1, characterized in that: the horizontal section of the T-shaped clamping groove and two matched L-shaped clamping grooves on the corresponding edges of the same rectangular area are provided with first partition plates (1-1), the straight-line-shaped clamping groove and two opposite and matched vertical sections of the T-shaped clamping grooves are provided with second partition plates (1-2), PE films are sleeved outside the first partition plates (1-1) and the second partition plates (1-2), and the partition plate networking is formed by the first partition plates (1-1) and the second partition plates (1-2).
3. The slitting-free construction method for the concrete ultra-flat floor according to claim 2, characterized in that: the top parts of the first partition plate (1-1) and the second partition plate (1-2) are respectively provided with two pull rings (2), and the two pull rings (2) are respectively positioned at two ends of the top parts of the first partition plate (1-1) and the second partition plate (1-2).
4. The slitting-free construction method for the concrete ultra-flat floor according to claim 1, characterized in that: the bottom of the L-shaped clamping piece (8) is provided with two main positioning hooks (9), the projection of one main positioning hook (9) of the two main positioning hooks (9) on the ground is parallel to one horizontal section of the L-shaped clamping piece (8), and the projection of the other main positioning hook (9) of the two main positioning hooks (9) on the ground is parallel to the other horizontal section of the L-shaped clamping piece (8).
5. The slitting-free construction method for the concrete ultra-flat floor according to claim 1, characterized in that: the transition positioning hook (7) is arranged at the bottom of the vertical section of the T-shaped clamping piece (6), and the projection of the transition positioning hook (7) on the ground is superposed with the projection of the vertical section of the T-shaped clamping piece (6) on the ground.
6. The slitting-free construction method for the concrete ultra-flat floor according to claim 1, characterized in that: the projection of the auxiliary positioning hook (5) on the ground is superposed with the projection of the linear clamping piece (4) on the ground.
7. The slitting-free construction method for the concrete ultra-flat floor according to claim 1, characterized in that: the support rings are arranged outside the upright posts (14), the number of the upright posts (14) is multiple, and the number of the upright posts (14) is equal to that of the support rings and corresponds to that of the support rings one by one.
8. The slitting-free construction method for the concrete ultra-flat floor according to claim 1, characterized in that: be provided with connecting pipe (13) on adjusting sleeve pipe (11), connecting pipe (13) and adjusting sleeve pipe (11) intercommunication are provided with in connecting pipe (13) with adjusting bolt (12) complex internal thread, adjusting bolt (12) stretch into in connecting pipe (13) with bracing piece (3) butt.
9. The slitting-free construction method for the concrete ultra-flat floor according to claim 1, characterized in that: and step eight, after the concrete is solidified, pulling out the first partition plate (1-1) along the length direction of the first partition plate (1-1) and pulling rings (2) on the second partition plate (1-2) by utilizing the first partition plate (1-1) and the second partition plate (1-2), and pulling out the second partition plate (1-2) along the length direction of the second partition plate (1-2).
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| CN112412069A (en) * | 2020-11-23 | 2021-02-26 | 中国建筑第二工程局有限公司 | Armored seam positioning device and construction method thereof |
| CN115949236B (en) * | 2022-12-28 | 2024-08-06 | 中煤第三建设（集团）有限责任公司 | Baffle fixed equipment |
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